package edu.rakovic.elearning.service;

import java.util.Collection;

import edu.rakovic.elearning.interfaces.Course;

public interface Courses {
	
	public Collection<Course> retreiveCourses();
	
	public Course save(Course course);
	
	public Course delete(String courseName);
	
	public Course retreiveSingleCourse(String courseName);
	
	public Collection<Course> retrieveTeachingCourses(String userName);

}
